Garetatug rezetecan

{
  "id": "MLC-T-ONC-013903",
  "term": "Garetatug rezetecan",
  "field": "Oncology and biomedicine",
  "definition": "An antibody-drug conjugate (ADC) composed of garetatug, an immunoglobulin G1 (IgG1) monoclonal antibody directed against the tumor-associated antigen (TAA) Claudin 18.2 (CLDN18.2; A2 isoform of claudin-18) conjugated, via a cleavable linker, to rezetecan, an exatecan derivative and topoisomerase 1 inhibitor, with potential antineoplastic activity. Upon administration of garetatug rezetecan, the anti-CLDN18.2 monoclonal antibody moiety specifically targets and binds to CLDN18.2 expressed on tumor cells. Upon binding, internalization and linker cleavage, rezetecan is released and inhibits DNA topoisomerase I activity, thereby inhibiting DNA replication and resulting in cell cycle arrest and apoptosis in tumor cells expressing CLDN18.2. CLDN18.2, a tight junction protein and stomach-specific isoform of claudin-18, is expressed on a variety of tumor cells. Its expression in healthy tissues is strictly confined to short-lived differentiated epithelial cells of the gastric mucosa.",
  "synonyms": [
    "ADC SHR-A1904",
    "anti-Claudin 18.2 ADC SHR-A1904",
    "Anti-CLDN18.2 ADC SHR-A1904",
    "anti-CLDN18.2 antibody-drug conjugate SHR-A1904",
    "anti-Claudin 18.2 antibody-drug conjugate SHR-A1904"
  ],
  "references": [
    "National Cancer Institute Thesaurus"
  ],
  "url": "https://mlchart.com/terminology/oncology/garetatug-rezetecan/"
}